Method of forging steel fulcrums.



L. L. WHITNEY.

METHOD OF FORGING STEEL FULCRUMS.

APPLICATION FILED NOV. 30.1917.

1,20,606 Patented Oct. 1, 1918.

5} MW k5 STATES l NT 1 LOREN L. wHiTNEY, or HAMMQND, INDIANA, AssieNon'ro AMEnIo N s'rnnr. 7

' .FOUNDBIES, oFoHIcAe iLLINoIs, A CORPORATION on EW JERSEY. l

Lesa-cos.

To all whom it may concern. Be it known that I, LOREN L WHITNEY, acitizen of the United'States, and resident of Hammond,in the county ofLake and State of Indiana, haveinvented certain new and usefulImprovements in Methods of Forging Steel Fulcrums, of which thefollowing is a specification.

This invention relates to method of forming brake beam'fulcrums with anintegral thirdpoint support.

V The object of the invention is to im prove'and simplify the method offorging brake beam 'fulcrums having an integral third point support. Y Hi Generally speaking, this object is accomplished by use .of the methodof forming a brake beam fulcrum consisting first in pro-- viding a blankhaving two spaced portions, then inserting another blank between saidspaced portions and in contact therewith,

and then upsetting the two blanks to form a seat on'one of the blanksanda third point support on the other of said blanks. The method isillustrated on the accompanying sheet of drawings, in which- Figure l isa plan view of a piece of stock which forms one of the blanks; Fig. 2 isa plan view, and Fig. 3 is a side elevation of the blank after one endthereof has been twisted and a portionthereof de-' inserted into the endof the loop of'the Fig. 8 shows a completed fulcrum wherein the firstblank is provided with a seat and a third point support is formed fromthe metal of the second blank and Fig. 9 is an end view of the completedbrake beam fulcrum.v i

The various novel features will be ap parent from thefollowingdescription and drawings and will be particularly pointed out in theappended claims.

There are various methods of formin brake beam fulcrums. .Mostof suchmoth I Applicationfiled November 30,1917. Seria1No. 204,572

METHOD or FORGI'NGSTEEL rULonu sods, however, are more or lesscomplicated,

and do not furnish a finished product adapted to meet all oftherequirement's for cessful commercial operation. s

In my improved method I makeuse of two blanks 10 and 11; The first one"is of flat metal stock, and the second preferf ably'is in the form of acylinder. In shap- Specification of L tters Patent. Patented Octal, 1918.

ingthe first blank,'0ne end 12 first is twisted a given amount and aportion 13 thereof deflected laterally. The, other end of the blank 10then is treated in the same manner to provide an angularly arrangedportion 14 and a deflected portionj1'5a The parallelspaced portions ormembers 17 the in loop 16 being closed at one end preferably bya'curvedwall 18.. The front end of the loop or opening 16 thus formed receivesthe second blank, which is placed between the side wall portions 17, andalso placed in engagement therewith and in engage- I ment with thecurved end wall 18 of the loop or opening 16. It will be understood thatat the time the second blank 11 is insorted into the first blank, asshown in Fig. 7, the second blank 11 and the cooperating end portion ofthe first blank, will be at welding heat, or they may be placed togetherprior to the time that they are heated and then brought to welding heattogether.

These blanks are then secured in proper dies and upset to form aseat 19in the metal formed bv the first orlarge blanklO, and to form a thirdpoint support "20 from the metal of the second blank 11, it beingunderstood that the finished product shown in Figs. 8 and 9 is anintegral structure. The seat 19 is for the reception of the tensionmember of a brake beam, and the laterally extending portions 13 and 15at the other end of the fulcrum are to be By means of this methodintegral brake beam fulcrumsmay be provided in a very simple manner andat' the same'time meet the various requirements forsuccessful cont,merclal operatlon.

I claim:

fulcrum consisting first in providing a blank 100, secured to thecompression member of the brake beam. i

- point support.

in the form of aloop, then inserting another blank Within the loop ofthefirst blank, and

then upsetting the two-blanks'to'forman integral strueture with a seatand athir'd 2. The method of forming-abrake'beam fulcrum consistingfirst in providing a blank in theforin of a loop, then inserting anotherblank Within the loop of the first blank, and

' {10 :then upsetting the tWo blanks to form an 1ntegralstructure-With aseat in the first blank and a third point supportformed fIOlIlilllGsecond blank. s

8. The method of forming a brake'beam Q lfulcrum consisting first in.providing a blank in the form of a loop, then inserting another blankWithin the loop in contact With the first blank, and then upsetting thetwo blanks t0 forman integral structure with a seat'in one i Q [blankand a third point support formed from the other blank.

4. The method of forming a brakebeam fulcrum consisting first inproviding a blank havingtwospaced members, then inserting another-blankbetween said members incontact therewith, and then upsetting said blanksto form an integralstrueture in'whioh a seat is formed in one of saidblanks and athird point support frointhe other of said blanks.

- 5.--The method of forniing a brake beam fulcrum consisting first inproviding a blank having a closed end, then inserting a second blankinsaid closed en'd in contaeuwith the first blank, 'and thenup's'ettin-g said blank to form an integral structure in Which a seat isformed in one-of said blanks and a third point support from the other ofsaid blanks. 6. The method of forming abra kebeam fulcrum consistingfirst in providing a blank With an opening therein, then inserting asecond blank in said opening in contact :With the first blank, and thenupsetting said blanks to form an integral structure in which a seat'isformedinone of said blanksanda third point support from the otherofsaidblanks. V

7. The method of forming fabrake "beam fulcrum consisting first inproviding. a

Copies of thisf patent may be obtained for five cents each, byaddressingthe Commissioner oflatezits,

' Washington, .D. 0.

